Results 31 to 40 of about 24,069 (204)
Improving Linear Weld Density in Ultrasonically Consolidated Parts [PDF]
Ultrasonic consolidation is a novel additive manufacturing process with immense potential for fabrication of complex shaped three-dimensional metallic objects from metal foils.
George, J. +4 more
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Experimental study on surface roughness processed by ultrasonic surface rolling process
Abstract In order to explore the formation principle of microscopic morphology of the lower surface of USRP, USRP theoretical analysis and processing experiments are carried out. Firstly, the spatial motion trajectory of tool head by USRP is established to reveal formation principle of surface morphology.
Haojie Wang, Xiaoqiang Wang
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Surface damage resulting from rolling contact operating in magnetic field [PDF]
This paper describes the effects of magnetic field in rolling contact tests of steel by using a two-disc configuration and the investigation of mechanisms involved.
Iida, Y, Sato, K, Stolarski, T A
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Gradient crystalline structure in surface layer of TC11 titanium alloy was obtained through ultrasonic impacting and rolling process. Microstructure, work hardening state, residual stress distribution, and surface roughness in modified layer were ...
Xiaohui Zhao, Guilian Xue, Yu Liu
doaj +1 more source
A novel ultrasonic strain gauge for single-sided measurement of a local 3D strain field [PDF]
A novel method is introduced for the measurement of a 3D strain field by exploiting the interaction between ultrasound waves and geometrical characteristics of the insonified specimen.
Allaer, Klaas +7 more
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Ultrasonic surface rolling (USRP) is an effective process to improve a workpiece’s fatigue property, in which ultrasonic vibration and static force are applied on the workpiece’s surface. In order to clarify the ultrasonic rolling strengthening mechanism of critical components and optimize the USRP parameters, a theoretical model of ultrasonic rolling ...
Xiaobin Wu +7 more
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STUDY ON PREDICTION MODEL OF SURFACE HARDNESS IN ULTRASOUND ROLLING EXTRUSION
Surface hardness is an important index for evaluating the quality of surface processing. Ultrasonic rolling and extrusion technology plays a very significant role in surface strengthening. Taking 42 CrMo bearing steel as the object,the range analysis was
WANG XiaoQiang +3 more
doaj
Research on the Influence Law of Ultrasonic Rolling Passes on the Tension-Tension Fatigue Properties of AZ31B Magnesium Alloy [PDF]
In order to improve the fatigue performance of AZ31B magnesium alloy under high-stress levels and reveal the related mechanism,ultrasonic rolling process was used to roll it for different passes (2/4/6).Subsequently, the fatigue life, surface roughness ...
SUN Xingzi, LI Shunlong, CHEN Qingqiang, SUN Jie, QI Xinchun, LU Laixiao
doaj +1 more source
Rock Crushing Analysis of TBM Disc Cutter Assisted by Ultra-High-Frequency Loading
In the construction of mountain tunnels, the increasing proportion of hard rock stratum enhances the difficulty of rock breaking by tunnel boring machine (TBM). As a type of cyclic load with ultrahigh frequency, ultrasonic vibration has the advantages of
Dajun Zhao +6 more
doaj +1 more source
Non-contact ultrasonic detection of angled surface defects [PDF]
Non-destructive testing is an important technique, and improvements are constantly needed. Surface defects in metals are not necessarily confined to orientations normal to the sample surface; however, much of the previous work investigating the ...
Clough, A. R. +3 more
core +1 more source

